./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a340643f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 75716fdd637a22328d600b3257cf24f40a7920b464397c315485c5ed90fb6ece --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a340643-m [2024-01-27 15:10:56,498 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-27 15:10:56,564 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-27 15:10:56,568 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-27 15:10:56,568 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-27 15:10:56,582 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-27 15:10:56,586 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-27 15:10:56,587 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-27 15:10:56,587 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-27 15:10:56,590 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-27 15:10:56,591 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-27 15:10:56,591 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-27 15:10:56,592 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-27 15:10:56,593 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-27 15:10:56,593 INFO L153 SettingsManager]: * Use SBE=true [2024-01-27 15:10:56,593 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-27 15:10:56,593 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-27 15:10:56,594 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-27 15:10:56,594 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-27 15:10:56,594 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-27 15:10:56,594 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-27 15:10:56,595 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-27 15:10:56,595 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-27 15:10:56,595 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-27 15:10:56,595 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-27 15:10:56,595 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-27 15:10:56,596 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-27 15:10:56,596 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-27 15:10:56,596 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-27 15:10:56,596 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-27 15:10:56,597 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-27 15:10:56,598 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-27 15:10:56,598 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 15:10:56,598 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-27 15:10:56,598 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-27 15:10:56,598 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-27 15:10:56,598 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-27 15:10:56,599 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-27 15:10:56,599 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-27 15:10:56,599 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-27 15:10:56,599 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-27 15:10:56,599 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-27 15:10:56,600 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-27 15:10:56,600 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75716fdd637a22328d600b3257cf24f40a7920b464397c315485c5ed90fb6ece [2024-01-27 15:10:56,833 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-27 15:10:56,856 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-27 15:10:56,858 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-27 15:10:56,859 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-27 15:10:56,859 INFO L274 PluginConnector]: CDTParser initialized [2024-01-27 15:10:56,860 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i [2024-01-27 15:10:57,878 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-27 15:10:58,116 INFO L384 CDTParser]: Found 1 translation units. [2024-01-27 15:10:58,120 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i [2024-01-27 15:10:58,142 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e778b7f21/1211e8dd2cfc4775a7aa105012f8a94e/FLAGc34b2c875 [2024-01-27 15:10:58,158 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e778b7f21/1211e8dd2cfc4775a7aa105012f8a94e [2024-01-27 15:10:58,160 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-27 15:10:58,161 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-01-27 15:10:58,162 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-27 15:10:58,162 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-27 15:10:58,166 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-27 15:10:58,166 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 03:10:58" (1/1) ... [2024-01-27 15:10:58,167 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d92ce62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:10:58, skipping insertion in model container [2024-01-27 15:10:58,167 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 03:10:58" (1/1) ... [2024-01-27 15:10:58,227 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-27 15:10:58,551 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i[186210,186223] [2024-01-27 15:10:58,629 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 15:10:58,648 INFO L202 MainTranslator]: Completed pre-run [2024-01-27 15:10:58,680 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i[186210,186223] [2024-01-27 15:10:58,696 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 15:10:58,733 INFO L206 MainTranslator]: Completed translation [2024-01-27 15:10:58,734 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:10:58 WrapperNode [2024-01-27 15:10:58,734 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-27 15:10:58,735 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-27 15:10:58,735 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-27 15:10:58,735 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-27 15:10:58,741 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:10:58" (1/1) ... [2024-01-27 15:10:58,766 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:10:58" (1/1) ... [2024-01-27 15:10:58,795 INFO L138 Inliner]: procedures = 246, calls = 47, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 135 [2024-01-27 15:10:58,795 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-27 15:10:58,796 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-27 15:10:58,796 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-27 15:10:58,796 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-27 15:10:58,804 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:10:58" (1/1) ... [2024-01-27 15:10:58,805 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:10:58" (1/1) ... [2024-01-27 15:10:58,817 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:10:58" (1/1) ... [2024-01-27 15:10:58,840 INFO L175 MemorySlicer]: Split 23 memory accesses to 5 slices as follows [2, 2, 3, 3, 13]. 57 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 0, 1, 1, 0]. The 10 writes are split as follows [0, 2, 1, 1, 6]. [2024-01-27 15:10:58,840 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:10:58" (1/1) ... [2024-01-27 15:10:58,840 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:10:58" (1/1) ... [2024-01-27 15:10:58,856 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:10:58" (1/1) ... [2024-01-27 15:10:58,864 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:10:58" (1/1) ... [2024-01-27 15:10:58,869 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:10:58" (1/1) ... [2024-01-27 15:10:58,870 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:10:58" (1/1) ... [2024-01-27 15:10:58,874 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-27 15:10:58,874 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-27 15:10:58,874 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-27 15:10:58,875 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-27 15:10:58,875 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:10:58" (1/1) ... [2024-01-27 15:10:58,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 15:10:58,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 15:10:58,898 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-27 15:10:58,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-27 15:10:58,942 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2024-01-27 15:10:58,943 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2024-01-27 15:10:58,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-27 15:10:58,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-27 15:10:58,943 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-27 15:10:58,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-27 15:10:58,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-27 15:10:58,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-27 15:10:58,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-27 15:10:58,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-27 15:10:58,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-27 15:10:58,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-27 15:10:58,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-27 15:10:58,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-27 15:10:58,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-27 15:10:58,944 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-27 15:10:58,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-27 15:10:58,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-01-27 15:10:58,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-01-27 15:10:58,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-01-27 15:10:58,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-01-27 15:10:58,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-01-27 15:10:58,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-27 15:10:58,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-27 15:10:58,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-27 15:10:58,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-27 15:10:58,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-27 15:10:58,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-27 15:10:58,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-27 15:10:58,950 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-27 15:10:59,144 INFO L244 CfgBuilder]: Building ICFG [2024-01-27 15:10:59,146 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-27 15:10:59,347 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-27 15:10:59,347 INFO L293 CfgBuilder]: Performing block encoding [2024-01-27 15:10:59,467 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-27 15:10:59,467 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-27 15:10:59,467 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 03:10:59 BoogieIcfgContainer [2024-01-27 15:10:59,467 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-27 15:10:59,469 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-27 15:10:59,469 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-27 15:10:59,472 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-27 15:10:59,473 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 03:10:58" (1/3) ... [2024-01-27 15:10:59,473 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ac9f1ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 03:10:59, skipping insertion in model container [2024-01-27 15:10:59,473 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:10:58" (2/3) ... [2024-01-27 15:10:59,474 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ac9f1ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 03:10:59, skipping insertion in model container [2024-01-27 15:10:59,474 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 03:10:59" (3/3) ... [2024-01-27 15:10:59,475 INFO L112 eAbstractionObserver]: Analyzing ICFG race-3_1-container_of-global.i [2024-01-27 15:10:59,481 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-01-27 15:10:59,488 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-27 15:10:59,488 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-01-27 15:10:59,488 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-27 15:10:59,536 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-01-27 15:10:59,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 58 places, 60 transitions, 134 flow [2024-01-27 15:10:59,615 INFO L124 PetriNetUnfolderBase]: 10/73 cut-off events. [2024-01-27 15:10:59,616 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-27 15:10:59,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 73 events. 10/73 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 138 event pairs, 0 based on Foata normal form. 0/53 useless extension candidates. Maximal degree in co-relation 39. Up to 4 conditions per place. [2024-01-27 15:10:59,619 INFO L82 GeneralOperation]: Start removeDead. Operand has 58 places, 60 transitions, 134 flow [2024-01-27 15:10:59,622 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 53 places, 53 transitions, 118 flow [2024-01-27 15:10:59,634 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 15:10:59,642 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7fbe2e2a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 15:10:59,642 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-01-27 15:10:59,646 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 15:10:59,646 INFO L124 PetriNetUnfolderBase]: 1/5 cut-off events. [2024-01-27 15:10:59,647 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 15:10:59,647 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:10:59,647 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-01-27 15:10:59,648 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-01-27 15:10:59,652 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:10:59,652 INFO L85 PathProgramCache]: Analyzing trace with hash 13556211, now seen corresponding path program 1 times [2024-01-27 15:10:59,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:10:59,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411384504] [2024-01-27 15:10:59,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:10:59,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:10:59,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:11:00,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 15:11:00,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:11:00,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411384504] [2024-01-27 15:11:00,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411384504] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:11:00,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:11:00,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 15:11:00,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513237846] [2024-01-27 15:11:00,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:11:00,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 15:11:00,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:11:00,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 15:11:00,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 15:11:00,233 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-01-27 15:11:00,235 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 53 transitions, 118 flow. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:11:00,235 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:11:00,235 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-01-27 15:11:00,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:11:00,469 INFO L124 PetriNetUnfolderBase]: 466/823 cut-off events. [2024-01-27 15:11:00,469 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-01-27 15:11:00,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1648 conditions, 823 events. 466/823 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 3419 event pairs, 345 based on Foata normal form. 3/822 useless extension candidates. Maximal degree in co-relation 1538. Up to 602 conditions per place. [2024-01-27 15:11:00,480 INFO L140 encePairwiseOnDemand]: 45/60 looper letters, 39 selfloop transitions, 10 changer transitions 0/54 dead transitions. [2024-01-27 15:11:00,480 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 54 transitions, 218 flow [2024-01-27 15:11:00,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 15:11:00,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 15:11:00,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 84 transitions. [2024-01-27 15:11:00,492 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4666666666666667 [2024-01-27 15:11:00,493 INFO L175 Difference]: Start difference. First operand has 53 places, 53 transitions, 118 flow. Second operand 3 states and 84 transitions. [2024-01-27 15:11:00,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 54 transitions, 218 flow [2024-01-27 15:11:00,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 54 transitions, 210 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-27 15:11:00,502 INFO L231 Difference]: Finished difference. Result has 47 places, 44 transitions, 112 flow [2024-01-27 15:11:00,503 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=47, PETRI_TRANSITIONS=44} [2024-01-27 15:11:00,506 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, -6 predicate places. [2024-01-27 15:11:00,507 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 44 transitions, 112 flow [2024-01-27 15:11:00,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:11:00,507 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:11:00,508 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-27 15:11:00,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-27 15:11:00,508 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-01-27 15:11:00,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:11:00,509 INFO L85 PathProgramCache]: Analyzing trace with hash 142689787, now seen corresponding path program 1 times [2024-01-27 15:11:00,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:11:00,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172877772] [2024-01-27 15:11:00,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:11:00,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:11:00,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:11:00,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 15:11:00,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:11:00,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172877772] [2024-01-27 15:11:00,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172877772] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:11:00,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:11:00,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-27 15:11:00,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830191555] [2024-01-27 15:11:00,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:11:00,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 15:11:00,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:11:00,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 15:11:00,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 15:11:00,691 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-01-27 15:11:00,691 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 44 transitions, 112 flow. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:11:00,691 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:11:00,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-01-27 15:11:00,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:11:00,883 INFO L124 PetriNetUnfolderBase]: 466/821 cut-off events. [2024-01-27 15:11:00,883 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2024-01-27 15:11:00,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1712 conditions, 821 events. 466/821 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 3445 event pairs, 155 based on Foata normal form. 1/821 useless extension candidates. Maximal degree in co-relation 818. Up to 553 conditions per place. [2024-01-27 15:11:00,887 INFO L140 encePairwiseOnDemand]: 48/60 looper letters, 47 selfloop transitions, 11 changer transitions 0/62 dead transitions. [2024-01-27 15:11:00,887 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 62 transitions, 265 flow [2024-01-27 15:11:00,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-27 15:11:00,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-27 15:11:00,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 109 transitions. [2024-01-27 15:11:00,901 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36333333333333334 [2024-01-27 15:11:00,902 INFO L175 Difference]: Start difference. First operand has 47 places, 44 transitions, 112 flow. Second operand 5 states and 109 transitions. [2024-01-27 15:11:00,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 62 transitions, 265 flow [2024-01-27 15:11:00,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 62 transitions, 245 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 15:11:00,904 INFO L231 Difference]: Finished difference. Result has 48 places, 45 transitions, 126 flow [2024-01-27 15:11:00,904 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=126, PETRI_PLACES=48, PETRI_TRANSITIONS=45} [2024-01-27 15:11:00,905 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, -5 predicate places. [2024-01-27 15:11:00,905 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 45 transitions, 126 flow [2024-01-27 15:11:00,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:11:00,905 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:11:00,905 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 15:11:00,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-27 15:11:00,905 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-01-27 15:11:00,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:11:00,906 INFO L85 PathProgramCache]: Analyzing trace with hash -816786038, now seen corresponding path program 1 times [2024-01-27 15:11:00,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:11:00,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004665081] [2024-01-27 15:11:00,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:11:00,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:11:00,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:11:01,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 15:11:01,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:11:01,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004665081] [2024-01-27 15:11:01,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004665081] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:11:01,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:11:01,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-27 15:11:01,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320657602] [2024-01-27 15:11:01,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:11:01,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 15:11:01,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:11:01,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 15:11:01,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 15:11:01,152 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-01-27 15:11:01,153 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 45 transitions, 126 flow. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:11:01,153 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:11:01,153 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-01-27 15:11:01,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:11:01,319 INFO L124 PetriNetUnfolderBase]: 562/1026 cut-off events. [2024-01-27 15:11:01,319 INFO L125 PetriNetUnfolderBase]: For 180/180 co-relation queries the response was YES. [2024-01-27 15:11:01,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2316 conditions, 1026 events. 562/1026 cut-off events. For 180/180 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 4854 event pairs, 252 based on Foata normal form. 64/1089 useless extension candidates. Maximal degree in co-relation 274. Up to 545 conditions per place. [2024-01-27 15:11:01,324 INFO L140 encePairwiseOnDemand]: 47/60 looper letters, 49 selfloop transitions, 10 changer transitions 4/67 dead transitions. [2024-01-27 15:11:01,324 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 67 transitions, 306 flow [2024-01-27 15:11:01,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 15:11:01,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 15:11:01,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 102 transitions. [2024-01-27 15:11:01,328 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.425 [2024-01-27 15:11:01,328 INFO L175 Difference]: Start difference. First operand has 48 places, 45 transitions, 126 flow. Second operand 4 states and 102 transitions. [2024-01-27 15:11:01,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 67 transitions, 306 flow [2024-01-27 15:11:01,331 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 67 transitions, 286 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-27 15:11:01,332 INFO L231 Difference]: Finished difference. Result has 50 places, 44 transitions, 150 flow [2024-01-27 15:11:01,332 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=150, PETRI_PLACES=50, PETRI_TRANSITIONS=44} [2024-01-27 15:11:01,333 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, -3 predicate places. [2024-01-27 15:11:01,333 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 44 transitions, 150 flow [2024-01-27 15:11:01,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:11:01,334 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:11:01,334 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 15:11:01,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-27 15:11:01,334 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-01-27 15:11:01,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:11:01,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1968833149, now seen corresponding path program 1 times [2024-01-27 15:11:01,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:11:01,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247658582] [2024-01-27 15:11:01,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:11:01,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:11:01,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:11:01,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 15:11:01,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:11:01,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247658582] [2024-01-27 15:11:01,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247658582] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:11:01,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:11:01,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-27 15:11:01,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759718569] [2024-01-27 15:11:01,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:11:01,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 15:11:01,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:11:01,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 15:11:01,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 15:11:01,461 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 60 [2024-01-27 15:11:01,461 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 44 transitions, 150 flow. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:11:01,461 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:11:01,461 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 60 [2024-01-27 15:11:01,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:11:01,572 INFO L124 PetriNetUnfolderBase]: 225/408 cut-off events. [2024-01-27 15:11:01,573 INFO L125 PetriNetUnfolderBase]: For 99/99 co-relation queries the response was YES. [2024-01-27 15:11:01,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 958 conditions, 408 events. 225/408 cut-off events. For 99/99 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1447 event pairs, 46 based on Foata normal form. 0/408 useless extension candidates. Maximal degree in co-relation 927. Up to 217 conditions per place. [2024-01-27 15:11:01,576 INFO L140 encePairwiseOnDemand]: 57/60 looper letters, 48 selfloop transitions, 3 changer transitions 0/58 dead transitions. [2024-01-27 15:11:01,576 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 58 transitions, 278 flow [2024-01-27 15:11:01,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 15:11:01,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 15:11:01,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 131 transitions. [2024-01-27 15:11:01,578 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5458333333333333 [2024-01-27 15:11:01,578 INFO L175 Difference]: Start difference. First operand has 50 places, 44 transitions, 150 flow. Second operand 4 states and 131 transitions. [2024-01-27 15:11:01,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 58 transitions, 278 flow [2024-01-27 15:11:01,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 58 transitions, 248 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-01-27 15:11:01,582 INFO L231 Difference]: Finished difference. Result has 41 places, 36 transitions, 96 flow [2024-01-27 15:11:01,582 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=96, PETRI_PLACES=41, PETRI_TRANSITIONS=36} [2024-01-27 15:11:01,584 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, -12 predicate places. [2024-01-27 15:11:01,584 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 36 transitions, 96 flow [2024-01-27 15:11:01,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:11:01,584 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:11:01,584 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 15:11:01,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-27 15:11:01,585 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-01-27 15:11:01,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:11:01,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1256735754, now seen corresponding path program 1 times [2024-01-27 15:11:01,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:11:01,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895616500] [2024-01-27 15:11:01,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:11:01,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:11:01,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:11:02,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 15:11:02,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:11:02,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895616500] [2024-01-27 15:11:02,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895616500] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:11:02,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:11:02,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-01-27 15:11:02,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83650593] [2024-01-27 15:11:02,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:11:02,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-27 15:11:02,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:11:02,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-27 15:11:02,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-01-27 15:11:02,067 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 60 [2024-01-27 15:11:02,067 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 36 transitions, 96 flow. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:11:02,067 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:11:02,067 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 60 [2024-01-27 15:11:02,067 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:11:02,230 INFO L124 PetriNetUnfolderBase]: 251/458 cut-off events. [2024-01-27 15:11:02,230 INFO L125 PetriNetUnfolderBase]: For 185/185 co-relation queries the response was YES. [2024-01-27 15:11:02,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1111 conditions, 458 events. 251/458 cut-off events. For 185/185 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1767 event pairs, 35 based on Foata normal form. 8/465 useless extension candidates. Maximal degree in co-relation 219. Up to 271 conditions per place. [2024-01-27 15:11:02,233 INFO L140 encePairwiseOnDemand]: 54/60 looper letters, 56 selfloop transitions, 6 changer transitions 0/69 dead transitions. [2024-01-27 15:11:02,233 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 69 transitions, 332 flow [2024-01-27 15:11:02,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-27 15:11:02,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-27 15:11:02,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 164 transitions. [2024-01-27 15:11:02,234 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5466666666666666 [2024-01-27 15:11:02,234 INFO L175 Difference]: Start difference. First operand has 41 places, 36 transitions, 96 flow. Second operand 5 states and 164 transitions. [2024-01-27 15:11:02,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 69 transitions, 332 flow [2024-01-27 15:11:02,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 69 transitions, 316 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 15:11:02,236 INFO L231 Difference]: Finished difference. Result has 45 places, 40 transitions, 126 flow [2024-01-27 15:11:02,236 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=126, PETRI_PLACES=45, PETRI_TRANSITIONS=40} [2024-01-27 15:11:02,237 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, -8 predicate places. [2024-01-27 15:11:02,237 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 40 transitions, 126 flow [2024-01-27 15:11:02,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:11:02,237 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:11:02,238 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 15:11:02,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-27 15:11:02,238 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-01-27 15:11:02,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:11:02,239 INFO L85 PathProgramCache]: Analyzing trace with hash 961716398, now seen corresponding path program 2 times [2024-01-27 15:11:02,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:11:02,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797933810] [2024-01-27 15:11:02,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:11:02,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:11:02,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:11:02,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 15:11:02,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:11:02,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797933810] [2024-01-27 15:11:02,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797933810] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:11:02,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:11:02,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-01-27 15:11:02,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871961371] [2024-01-27 15:11:02,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:11:02,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-27 15:11:02,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:11:02,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-27 15:11:02,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-01-27 15:11:02,738 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 60 [2024-01-27 15:11:02,738 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 40 transitions, 126 flow. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:11:02,739 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:11:02,739 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 60 [2024-01-27 15:11:02,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:11:02,931 INFO L124 PetriNetUnfolderBase]: 281/516 cut-off events. [2024-01-27 15:11:02,931 INFO L125 PetriNetUnfolderBase]: For 225/225 co-relation queries the response was YES. [2024-01-27 15:11:02,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1441 conditions, 516 events. 281/516 cut-off events. For 225/225 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2041 event pairs, 37 based on Foata normal form. 8/523 useless extension candidates. Maximal degree in co-relation 354. Up to 307 conditions per place. [2024-01-27 15:11:02,935 INFO L140 encePairwiseOnDemand]: 54/60 looper letters, 58 selfloop transitions, 8 changer transitions 0/73 dead transitions. [2024-01-27 15:11:02,935 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 73 transitions, 378 flow [2024-01-27 15:11:02,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-27 15:11:02,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-27 15:11:02,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 164 transitions. [2024-01-27 15:11:02,937 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5466666666666666 [2024-01-27 15:11:02,937 INFO L175 Difference]: Start difference. First operand has 45 places, 40 transitions, 126 flow. Second operand 5 states and 164 transitions. [2024-01-27 15:11:02,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 73 transitions, 378 flow [2024-01-27 15:11:02,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 73 transitions, 375 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-27 15:11:02,939 INFO L231 Difference]: Finished difference. Result has 50 places, 44 transitions, 172 flow [2024-01-27 15:11:02,939 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=172, PETRI_PLACES=50, PETRI_TRANSITIONS=44} [2024-01-27 15:11:02,940 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, -3 predicate places. [2024-01-27 15:11:02,940 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 44 transitions, 172 flow [2024-01-27 15:11:02,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:11:02,941 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:11:02,941 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 15:11:02,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-27 15:11:02,941 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-01-27 15:11:02,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:11:02,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1132370888, now seen corresponding path program 3 times [2024-01-27 15:11:02,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:11:02,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469035984] [2024-01-27 15:11:02,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:11:02,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:11:02,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:11:03,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 15:11:03,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:11:03,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469035984] [2024-01-27 15:11:03,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469035984] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:11:03,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:11:03,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-01-27 15:11:03,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044506964] [2024-01-27 15:11:03,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:11:03,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-01-27 15:11:03,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:11:03,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-01-27 15:11:03,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-01-27 15:11:03,392 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-01-27 15:11:03,393 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 44 transitions, 172 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:11:03,393 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:11:03,393 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-01-27 15:11:03,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:11:03,639 INFO L124 PetriNetUnfolderBase]: 324/607 cut-off events. [2024-01-27 15:11:03,640 INFO L125 PetriNetUnfolderBase]: For 577/577 co-relation queries the response was YES. [2024-01-27 15:11:03,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1923 conditions, 607 events. 324/607 cut-off events. For 577/577 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2457 event pairs, 38 based on Foata normal form. 0/606 useless extension candidates. Maximal degree in co-relation 696. Up to 171 conditions per place. [2024-01-27 15:11:03,643 INFO L140 encePairwiseOnDemand]: 47/60 looper letters, 82 selfloop transitions, 23 changer transitions 0/107 dead transitions. [2024-01-27 15:11:03,643 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 107 transitions, 682 flow [2024-01-27 15:11:03,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-01-27 15:11:03,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-01-27 15:11:03,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 201 transitions. [2024-01-27 15:11:03,645 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2791666666666667 [2024-01-27 15:11:03,645 INFO L175 Difference]: Start difference. First operand has 50 places, 44 transitions, 172 flow. Second operand 12 states and 201 transitions. [2024-01-27 15:11:03,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 107 transitions, 682 flow [2024-01-27 15:11:03,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 107 transitions, 674 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-01-27 15:11:03,647 INFO L231 Difference]: Finished difference. Result has 64 places, 55 transitions, 288 flow [2024-01-27 15:11:03,647 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=288, PETRI_PLACES=64, PETRI_TRANSITIONS=55} [2024-01-27 15:11:03,648 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 11 predicate places. [2024-01-27 15:11:03,648 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 55 transitions, 288 flow [2024-01-27 15:11:03,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:11:03,648 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:11:03,648 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 15:11:03,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-27 15:11:03,649 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-01-27 15:11:03,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:11:03,649 INFO L85 PathProgramCache]: Analyzing trace with hash 168114134, now seen corresponding path program 4 times [2024-01-27 15:11:03,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:11:03,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304577198] [2024-01-27 15:11:03,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:11:03,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:11:03,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:11:03,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 15:11:03,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:11:03,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304577198] [2024-01-27 15:11:03,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304577198] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:11:03,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:11:03,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-01-27 15:11:03,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170897058] [2024-01-27 15:11:03,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:11:03,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-27 15:11:03,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:11:03,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-27 15:11:03,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-01-27 15:11:03,926 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 60 [2024-01-27 15:11:03,926 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 55 transitions, 288 flow. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:11:03,928 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:11:03,928 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 60 [2024-01-27 15:11:03,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:11:04,128 INFO L124 PetriNetUnfolderBase]: 437/848 cut-off events. [2024-01-27 15:11:04,129 INFO L125 PetriNetUnfolderBase]: For 1437/1437 co-relation queries the response was YES. [2024-01-27 15:11:04,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2923 conditions, 848 events. 437/848 cut-off events. For 1437/1437 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 4088 event pairs, 115 based on Foata normal form. 16/864 useless extension candidates. Maximal degree in co-relation 2881. Up to 515 conditions per place. [2024-01-27 15:11:04,134 INFO L140 encePairwiseOnDemand]: 54/60 looper letters, 87 selfloop transitions, 10 changer transitions 0/105 dead transitions. [2024-01-27 15:11:04,134 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 105 transitions, 750 flow [2024-01-27 15:11:04,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-27 15:11:04,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-27 15:11:04,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 173 transitions. [2024-01-27 15:11:04,137 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5766666666666667 [2024-01-27 15:11:04,137 INFO L175 Difference]: Start difference. First operand has 64 places, 55 transitions, 288 flow. Second operand 5 states and 173 transitions. [2024-01-27 15:11:04,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 105 transitions, 750 flow [2024-01-27 15:11:04,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 105 transitions, 725 flow, removed 8 selfloop flow, removed 3 redundant places. [2024-01-27 15:11:04,143 INFO L231 Difference]: Finished difference. Result has 68 places, 61 transitions, 370 flow [2024-01-27 15:11:04,144 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=370, PETRI_PLACES=68, PETRI_TRANSITIONS=61} [2024-01-27 15:11:04,146 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 15 predicate places. [2024-01-27 15:11:04,146 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 61 transitions, 370 flow [2024-01-27 15:11:04,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:11:04,146 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:11:04,146 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 15:11:04,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-27 15:11:04,147 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-01-27 15:11:04,147 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:11:04,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1016340330, now seen corresponding path program 5 times [2024-01-27 15:11:04,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:11:04,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462164139] [2024-01-27 15:11:04,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:11:04,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:11:04,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:11:04,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 15:11:04,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:11:04,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462164139] [2024-01-27 15:11:04,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462164139] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:11:04,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:11:04,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-01-27 15:11:04,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174322682] [2024-01-27 15:11:04,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:11:04,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-01-27 15:11:04,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:11:04,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-01-27 15:11:04,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-01-27 15:11:04,523 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-01-27 15:11:04,523 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 61 transitions, 370 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:11:04,523 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:11:04,523 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-01-27 15:11:04,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:11:04,804 INFO L124 PetriNetUnfolderBase]: 437/844 cut-off events. [2024-01-27 15:11:04,805 INFO L125 PetriNetUnfolderBase]: For 2287/2287 co-relation queries the response was YES. [2024-01-27 15:11:04,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3182 conditions, 844 events. 437/844 cut-off events. For 2287/2287 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 3994 event pairs, 45 based on Foata normal form. 2/846 useless extension candidates. Maximal degree in co-relation 3139. Up to 246 conditions per place. [2024-01-27 15:11:04,810 INFO L140 encePairwiseOnDemand]: 47/60 looper letters, 93 selfloop transitions, 27 changer transitions 0/121 dead transitions. [2024-01-27 15:11:04,810 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 121 transitions, 1017 flow [2024-01-27 15:11:04,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-01-27 15:11:04,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-01-27 15:11:04,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 202 transitions. [2024-01-27 15:11:04,812 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.28055555555555556 [2024-01-27 15:11:04,812 INFO L175 Difference]: Start difference. First operand has 68 places, 61 transitions, 370 flow. Second operand 12 states and 202 transitions. [2024-01-27 15:11:04,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 121 transitions, 1017 flow [2024-01-27 15:11:04,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 121 transitions, 995 flow, removed 8 selfloop flow, removed 2 redundant places. [2024-01-27 15:11:04,819 INFO L231 Difference]: Finished difference. Result has 76 places, 65 transitions, 465 flow [2024-01-27 15:11:04,819 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=465, PETRI_PLACES=76, PETRI_TRANSITIONS=65} [2024-01-27 15:11:04,820 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 23 predicate places. [2024-01-27 15:11:04,820 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 65 transitions, 465 flow [2024-01-27 15:11:04,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:11:04,820 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:11:04,820 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 15:11:04,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-01-27 15:11:04,821 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-01-27 15:11:04,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:11:04,821 INFO L85 PathProgramCache]: Analyzing trace with hash 680360345, now seen corresponding path program 1 times [2024-01-27 15:11:04,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:11:04,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820159885] [2024-01-27 15:11:04,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:11:04,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:11:04,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:11:05,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 15:11:05,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:11:05,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820159885] [2024-01-27 15:11:05,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820159885] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:11:05,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:11:05,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-01-27 15:11:05,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947728341] [2024-01-27 15:11:05,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:11:05,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-01-27 15:11:05,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:11:05,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-01-27 15:11:05,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-01-27 15:11:05,560 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-01-27 15:11:05,560 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 65 transitions, 465 flow. Second operand has 10 states, 10 states have (on average 13.0) internal successors, (130), 10 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:11:05,560 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:11:05,560 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-01-27 15:11:05,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:11:05,972 INFO L124 PetriNetUnfolderBase]: 437/842 cut-off events. [2024-01-27 15:11:05,973 INFO L125 PetriNetUnfolderBase]: For 2801/2801 co-relation queries the response was YES. [2024-01-27 15:11:05,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3376 conditions, 842 events. 437/842 cut-off events. For 2801/2801 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3923 event pairs, 82 based on Foata normal form. 1/843 useless extension candidates. Maximal degree in co-relation 2470. Up to 368 conditions per place. [2024-01-27 15:11:05,978 INFO L140 encePairwiseOnDemand]: 49/60 looper letters, 72 selfloop transitions, 32 changer transitions 27/132 dead transitions. [2024-01-27 15:11:05,978 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 132 transitions, 1200 flow [2024-01-27 15:11:05,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-01-27 15:11:05,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-01-27 15:11:05,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 232 transitions. [2024-01-27 15:11:05,979 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2761904761904762 [2024-01-27 15:11:05,979 INFO L175 Difference]: Start difference. First operand has 76 places, 65 transitions, 465 flow. Second operand 14 states and 232 transitions. [2024-01-27 15:11:05,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 132 transitions, 1200 flow [2024-01-27 15:11:05,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 132 transitions, 1148 flow, removed 11 selfloop flow, removed 7 redundant places. [2024-01-27 15:11:05,987 INFO L231 Difference]: Finished difference. Result has 88 places, 78 transitions, 685 flow [2024-01-27 15:11:05,988 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=431, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=685, PETRI_PLACES=88, PETRI_TRANSITIONS=78} [2024-01-27 15:11:05,988 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 35 predicate places. [2024-01-27 15:11:05,988 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 78 transitions, 685 flow [2024-01-27 15:11:05,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.0) internal successors, (130), 10 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:11:05,989 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:11:05,989 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 15:11:05,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-01-27 15:11:05,989 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-01-27 15:11:05,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:11:05,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1660655849, now seen corresponding path program 2 times [2024-01-27 15:11:05,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:11:05,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091988039] [2024-01-27 15:11:05,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:11:05,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:11:06,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:11:06,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 15:11:06,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:11:06,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091988039] [2024-01-27 15:11:06,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091988039] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:11:06,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:11:06,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-01-27 15:11:06,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272223640] [2024-01-27 15:11:06,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:11:06,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-01-27 15:11:06,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:11:06,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-01-27 15:11:06,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-01-27 15:11:06,712 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-01-27 15:11:06,713 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 78 transitions, 685 flow. Second operand has 11 states, 11 states have (on average 12.727272727272727) internal successors, (140), 11 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:11:06,714 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:11:06,714 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-01-27 15:11:06,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:11:07,104 INFO L124 PetriNetUnfolderBase]: 377/746 cut-off events. [2024-01-27 15:11:07,104 INFO L125 PetriNetUnfolderBase]: For 2817/2817 co-relation queries the response was YES. [2024-01-27 15:11:07,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3126 conditions, 746 events. 377/746 cut-off events. For 2817/2817 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 3385 event pairs, 66 based on Foata normal form. 1/747 useless extension candidates. Maximal degree in co-relation 3094. Up to 410 conditions per place. [2024-01-27 15:11:07,109 INFO L140 encePairwiseOnDemand]: 49/60 looper letters, 68 selfloop transitions, 28 changer transitions 32/129 dead transitions. [2024-01-27 15:11:07,109 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 129 transitions, 1242 flow [2024-01-27 15:11:07,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-01-27 15:11:07,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-01-27 15:11:07,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 217 transitions. [2024-01-27 15:11:07,111 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2782051282051282 [2024-01-27 15:11:07,111 INFO L175 Difference]: Start difference. First operand has 88 places, 78 transitions, 685 flow. Second operand 13 states and 217 transitions. [2024-01-27 15:11:07,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 129 transitions, 1242 flow [2024-01-27 15:11:07,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 129 transitions, 1135 flow, removed 15 selfloop flow, removed 10 redundant places. [2024-01-27 15:11:07,119 INFO L231 Difference]: Finished difference. Result has 91 places, 75 transitions, 637 flow [2024-01-27 15:11:07,120 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=602, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=637, PETRI_PLACES=91, PETRI_TRANSITIONS=75} [2024-01-27 15:11:07,120 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 38 predicate places. [2024-01-27 15:11:07,120 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 75 transitions, 637 flow [2024-01-27 15:11:07,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.727272727272727) internal successors, (140), 11 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:11:07,121 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:11:07,121 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 15:11:07,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-01-27 15:11:07,121 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-01-27 15:11:07,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:11:07,121 INFO L85 PathProgramCache]: Analyzing trace with hash 2061160203, now seen corresponding path program 3 times [2024-01-27 15:11:07,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:11:07,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411006146] [2024-01-27 15:11:07,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:11:07,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:11:07,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:11:07,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 15:11:07,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:11:07,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411006146] [2024-01-27 15:11:07,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411006146] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:11:07,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:11:07,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-01-27 15:11:07,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437616527] [2024-01-27 15:11:07,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:11:07,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-01-27 15:11:07,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:11:07,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-01-27 15:11:07,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-01-27 15:11:07,840 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-01-27 15:11:07,840 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 75 transitions, 637 flow. Second operand has 10 states, 10 states have (on average 13.0) internal successors, (130), 10 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:11:07,840 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:11:07,840 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-01-27 15:11:07,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:11:08,250 INFO L124 PetriNetUnfolderBase]: 295/584 cut-off events. [2024-01-27 15:11:08,250 INFO L125 PetriNetUnfolderBase]: For 2029/2029 co-relation queries the response was YES. [2024-01-27 15:11:08,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2413 conditions, 584 events. 295/584 cut-off events. For 2029/2029 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2421 event pairs, 58 based on Foata normal form. 1/585 useless extension candidates. Maximal degree in co-relation 2387. Up to 301 conditions per place. [2024-01-27 15:11:08,254 INFO L140 encePairwiseOnDemand]: 49/60 looper letters, 58 selfloop transitions, 26 changer transitions 27/112 dead transitions. [2024-01-27 15:11:08,255 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 112 transitions, 1053 flow [2024-01-27 15:11:08,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-01-27 15:11:08,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-01-27 15:11:08,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 228 transitions. [2024-01-27 15:11:08,256 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2714285714285714 [2024-01-27 15:11:08,256 INFO L175 Difference]: Start difference. First operand has 91 places, 75 transitions, 637 flow. Second operand 14 states and 228 transitions. [2024-01-27 15:11:08,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 112 transitions, 1053 flow [2024-01-27 15:11:08,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 112 transitions, 994 flow, removed 1 selfloop flow, removed 10 redundant places. [2024-01-27 15:11:08,262 INFO L231 Difference]: Finished difference. Result has 93 places, 67 transitions, 579 flow [2024-01-27 15:11:08,262 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=580, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=579, PETRI_PLACES=93, PETRI_TRANSITIONS=67} [2024-01-27 15:11:08,262 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 40 predicate places. [2024-01-27 15:11:08,263 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 67 transitions, 579 flow [2024-01-27 15:11:08,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.0) internal successors, (130), 10 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:11:08,263 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:11:08,263 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 15:11:08,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-01-27 15:11:08,263 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-01-27 15:11:08,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:11:08,264 INFO L85 PathProgramCache]: Analyzing trace with hash -2060501693, now seen corresponding path program 4 times [2024-01-27 15:11:08,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:11:08,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413206399] [2024-01-27 15:11:08,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:11:08,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:11:08,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:11:08,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 15:11:08,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:11:08,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413206399] [2024-01-27 15:11:08,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413206399] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:11:08,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:11:08,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-01-27 15:11:08,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413049391] [2024-01-27 15:11:08,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:11:08,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-01-27 15:11:08,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:11:08,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-01-27 15:11:08,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-01-27 15:11:08,846 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-01-27 15:11:08,847 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 67 transitions, 579 flow. Second operand has 10 states, 10 states have (on average 13.0) internal successors, (130), 10 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:11:08,847 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:11:08,847 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-01-27 15:11:08,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:11:09,194 INFO L124 PetriNetUnfolderBase]: 228/449 cut-off events. [2024-01-27 15:11:09,194 INFO L125 PetriNetUnfolderBase]: For 1654/1654 co-relation queries the response was YES. [2024-01-27 15:11:09,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1920 conditions, 449 events. 228/449 cut-off events. For 1654/1654 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1687 event pairs, 36 based on Foata normal form. 1/450 useless extension candidates. Maximal degree in co-relation 1899. Up to 237 conditions per place. [2024-01-27 15:11:09,198 INFO L140 encePairwiseOnDemand]: 49/60 looper letters, 45 selfloop transitions, 16 changer transitions 36/98 dead transitions. [2024-01-27 15:11:09,198 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 98 transitions, 920 flow [2024-01-27 15:11:09,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-01-27 15:11:09,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-01-27 15:11:09,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 220 transitions. [2024-01-27 15:11:09,201 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2619047619047619 [2024-01-27 15:11:09,201 INFO L175 Difference]: Start difference. First operand has 93 places, 67 transitions, 579 flow. Second operand 14 states and 220 transitions. [2024-01-27 15:11:09,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 98 transitions, 920 flow [2024-01-27 15:11:09,207 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 98 transitions, 804 flow, removed 3 selfloop flow, removed 15 redundant places. [2024-01-27 15:11:09,208 INFO L231 Difference]: Finished difference. Result has 87 places, 53 transitions, 371 flow [2024-01-27 15:11:09,208 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=478, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=371, PETRI_PLACES=87, PETRI_TRANSITIONS=53} [2024-01-27 15:11:09,209 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 34 predicate places. [2024-01-27 15:11:09,209 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 53 transitions, 371 flow [2024-01-27 15:11:09,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.0) internal successors, (130), 10 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:11:09,210 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:11:09,210 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 15:11:09,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-01-27 15:11:09,211 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-01-27 15:11:09,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:11:09,211 INFO L85 PathProgramCache]: Analyzing trace with hash 889982991, now seen corresponding path program 5 times [2024-01-27 15:11:09,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:11:09,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041695359] [2024-01-27 15:11:09,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:11:09,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:11:09,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:11:09,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 15:11:09,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:11:09,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041695359] [2024-01-27 15:11:09,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041695359] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:11:09,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:11:09,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-01-27 15:11:09,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379520564] [2024-01-27 15:11:09,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:11:09,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-27 15:11:09,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:11:09,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-27 15:11:09,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-01-27 15:11:09,537 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 60 [2024-01-27 15:11:09,538 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 53 transitions, 371 flow. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:11:09,538 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:11:09,538 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 60 [2024-01-27 15:11:09,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:11:09,638 INFO L124 PetriNetUnfolderBase]: 97/204 cut-off events. [2024-01-27 15:11:09,639 INFO L125 PetriNetUnfolderBase]: For 750/750 co-relation queries the response was YES. [2024-01-27 15:11:09,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 834 conditions, 204 events. 97/204 cut-off events. For 750/750 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 573 event pairs, 9 based on Foata normal form. 12/216 useless extension candidates. Maximal degree in co-relation 816. Up to 96 conditions per place. [2024-01-27 15:11:09,640 INFO L140 encePairwiseOnDemand]: 54/60 looper letters, 45 selfloop transitions, 14 changer transitions 0/64 dead transitions. [2024-01-27 15:11:09,640 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 64 transitions, 533 flow [2024-01-27 15:11:09,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-27 15:11:09,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-27 15:11:09,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 154 transitions. [2024-01-27 15:11:09,641 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5133333333333333 [2024-01-27 15:11:09,642 INFO L175 Difference]: Start difference. First operand has 87 places, 53 transitions, 371 flow. Second operand 5 states and 154 transitions. [2024-01-27 15:11:09,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 64 transitions, 533 flow [2024-01-27 15:11:09,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 64 transitions, 421 flow, removed 16 selfloop flow, removed 18 redundant places. [2024-01-27 15:11:09,645 INFO L231 Difference]: Finished difference. Result has 65 places, 51 transitions, 311 flow [2024-01-27 15:11:09,645 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=311, PETRI_PLACES=65, PETRI_TRANSITIONS=51} [2024-01-27 15:11:09,646 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 12 predicate places. [2024-01-27 15:11:09,646 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 51 transitions, 311 flow [2024-01-27 15:11:09,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:11:09,646 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:11:09,646 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 15:11:09,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-01-27 15:11:09,647 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-01-27 15:11:09,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:11:09,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1745395505, now seen corresponding path program 6 times [2024-01-27 15:11:09,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:11:09,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139266153] [2024-01-27 15:11:09,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:11:09,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:11:09,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:11:10,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 15:11:10,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:11:10,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139266153] [2024-01-27 15:11:10,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139266153] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:11:10,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:11:10,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-01-27 15:11:10,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144923277] [2024-01-27 15:11:10,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:11:10,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-01-27 15:11:10,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:11:10,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-01-27 15:11:10,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-01-27 15:11:10,350 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-01-27 15:11:10,350 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 51 transitions, 311 flow. Second operand has 11 states, 11 states have (on average 12.727272727272727) internal successors, (140), 11 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:11:10,350 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:11:10,351 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-01-27 15:11:10,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:11:10,621 INFO L124 PetriNetUnfolderBase]: 144/303 cut-off events. [2024-01-27 15:11:10,621 INFO L125 PetriNetUnfolderBase]: For 767/767 co-relation queries the response was YES. [2024-01-27 15:11:10,622 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1039 conditions, 303 events. 144/303 cut-off events. For 767/767 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 993 event pairs, 5 based on Foata normal form. 1/304 useless extension candidates. Maximal degree in co-relation 739. Up to 71 conditions per place. [2024-01-27 15:11:10,623 INFO L140 encePairwiseOnDemand]: 49/60 looper letters, 37 selfloop transitions, 14 changer transitions 30/82 dead transitions. [2024-01-27 15:11:10,623 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 82 transitions, 599 flow [2024-01-27 15:11:10,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-01-27 15:11:10,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-01-27 15:11:10,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 197 transitions. [2024-01-27 15:11:10,625 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.25256410256410255 [2024-01-27 15:11:10,626 INFO L175 Difference]: Start difference. First operand has 65 places, 51 transitions, 311 flow. Second operand 13 states and 197 transitions. [2024-01-27 15:11:10,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 82 transitions, 599 flow [2024-01-27 15:11:10,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 82 transitions, 558 flow, removed 8 selfloop flow, removed 5 redundant places. [2024-01-27 15:11:10,628 INFO L231 Difference]: Finished difference. Result has 73 places, 43 transitions, 241 flow [2024-01-27 15:11:10,629 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=241, PETRI_PLACES=73, PETRI_TRANSITIONS=43} [2024-01-27 15:11:10,630 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 20 predicate places. [2024-01-27 15:11:10,630 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 43 transitions, 241 flow [2024-01-27 15:11:10,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.727272727272727) internal successors, (140), 11 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:11:10,630 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:11:10,631 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 15:11:10,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-01-27 15:11:10,631 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-01-27 15:11:10,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:11:10,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1630154683, now seen corresponding path program 7 times [2024-01-27 15:11:10,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:11:10,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740308935] [2024-01-27 15:11:10,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:11:10,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:11:10,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:11:11,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 15:11:11,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:11:11,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740308935] [2024-01-27 15:11:11,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740308935] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:11:11,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:11:11,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-01-27 15:11:11,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713836514] [2024-01-27 15:11:11,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:11:11,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-01-27 15:11:11,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:11:11,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-01-27 15:11:11,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-01-27 15:11:11,293 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-01-27 15:11:11,293 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 43 transitions, 241 flow. Second operand has 10 states, 10 states have (on average 13.0) internal successors, (130), 10 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:11:11,294 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:11:11,294 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-01-27 15:11:11,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:11:11,529 INFO L124 PetriNetUnfolderBase]: 76/169 cut-off events. [2024-01-27 15:11:11,529 INFO L125 PetriNetUnfolderBase]: For 274/274 co-relation queries the response was YES. [2024-01-27 15:11:11,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 599 conditions, 169 events. 76/169 cut-off events. For 274/274 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 421 event pairs, 4 based on Foata normal form. 1/170 useless extension candidates. Maximal degree in co-relation 587. Up to 62 conditions per place. [2024-01-27 15:11:11,530 INFO L140 encePairwiseOnDemand]: 50/60 looper letters, 0 selfloop transitions, 0 changer transitions 54/54 dead transitions. [2024-01-27 15:11:11,530 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 54 transitions, 393 flow [2024-01-27 15:11:11,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-01-27 15:11:11,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-01-27 15:11:11,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 181 transitions. [2024-01-27 15:11:11,532 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.23205128205128206 [2024-01-27 15:11:11,532 INFO L175 Difference]: Start difference. First operand has 73 places, 43 transitions, 241 flow. Second operand 13 states and 181 transitions. [2024-01-27 15:11:11,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 54 transitions, 393 flow [2024-01-27 15:11:11,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 54 transitions, 323 flow, removed 0 selfloop flow, removed 18 redundant places. [2024-01-27 15:11:11,534 INFO L231 Difference]: Finished difference. Result has 62 places, 0 transitions, 0 flow [2024-01-27 15:11:11,534 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=0, PETRI_PLACES=62, PETRI_TRANSITIONS=0} [2024-01-27 15:11:11,534 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 9 predicate places. [2024-01-27 15:11:11,534 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 0 transitions, 0 flow [2024-01-27 15:11:11,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.0) internal successors, (130), 10 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:11:11,537 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 8 remaining) [2024-01-27 15:11:11,538 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2024-01-27 15:11:11,538 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2024-01-27 15:11:11,538 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2024-01-27 15:11:11,539 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2024-01-27 15:11:11,539 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2024-01-27 15:11:11,539 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2024-01-27 15:11:11,539 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2024-01-27 15:11:11,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-01-27 15:11:11,539 INFO L445 BasicCegarLoop]: Path program histogram: [7, 5, 1, 1, 1, 1] [2024-01-27 15:11:11,542 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-27 15:11:11,542 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-27 15:11:11,545 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 03:11:11 BasicIcfg [2024-01-27 15:11:11,545 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-27 15:11:11,546 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-01-27 15:11:11,546 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-01-27 15:11:11,546 INFO L274 PluginConnector]: Witness Printer initialized [2024-01-27 15:11:11,546 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 03:10:59" (3/4) ... [2024-01-27 15:11:11,547 INFO L137 WitnessPrinter]: Generating witness for correct program [2024-01-27 15:11:11,550 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure my_callback [2024-01-27 15:11:11,560 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 86 nodes and edges [2024-01-27 15:11:11,560 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 40 nodes and edges [2024-01-27 15:11:11,561 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-01-27 15:11:11,561 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-01-27 15:11:11,642 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-01-27 15:11:11,643 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-01-27 15:11:11,643 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-01-27 15:11:11,644 INFO L158 Benchmark]: Toolchain (without parser) took 13482.11ms. Allocated memory was 184.5MB in the beginning and 583.0MB in the end (delta: 398.5MB). Free memory was 112.0MB in the beginning and 486.2MB in the end (delta: -374.2MB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. [2024-01-27 15:11:11,644 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 184.5MB. Free memory is still 140.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 15:11:11,644 INFO L158 Benchmark]: CACSL2BoogieTranslator took 571.84ms. Allocated memory is still 184.5MB. Free memory was 111.8MB in the beginning and 139.4MB in the end (delta: -27.6MB). Peak memory consumption was 27.4MB. Max. memory is 16.1GB. [2024-01-27 15:11:11,644 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.07ms. Allocated memory is still 184.5MB. Free memory was 139.4MB in the beginning and 136.4MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 15:11:11,645 INFO L158 Benchmark]: Boogie Preprocessor took 78.14ms. Allocated memory is still 184.5MB. Free memory was 136.4MB in the beginning and 132.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-01-27 15:11:11,645 INFO L158 Benchmark]: RCFGBuilder took 593.14ms. Allocated memory is still 184.5MB. Free memory was 132.2MB in the beginning and 88.1MB in the end (delta: 44.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2024-01-27 15:11:11,645 INFO L158 Benchmark]: TraceAbstraction took 12076.33ms. Allocated memory was 184.5MB in the beginning and 583.0MB in the end (delta: 398.5MB). Free memory was 87.0MB in the beginning and 491.4MB in the end (delta: -404.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 15:11:11,645 INFO L158 Benchmark]: Witness Printer took 97.45ms. Allocated memory is still 583.0MB. Free memory was 491.4MB in the beginning and 486.2MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-01-27 15:11:11,646 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 184.5MB. Free memory is still 140.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 571.84ms. Allocated memory is still 184.5MB. Free memory was 111.8MB in the beginning and 139.4MB in the end (delta: -27.6MB). Peak memory consumption was 27.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.07ms. Allocated memory is still 184.5MB. Free memory was 139.4MB in the beginning and 136.4MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 78.14ms. Allocated memory is still 184.5MB. Free memory was 136.4MB in the beginning and 132.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 593.14ms. Allocated memory is still 184.5MB. Free memory was 132.2MB in the beginning and 88.1MB in the end (delta: 44.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * TraceAbstraction took 12076.33ms. Allocated memory was 184.5MB in the beginning and 583.0MB in the end (delta: 398.5MB). Free memory was 87.0MB in the beginning and 491.4MB in the end (delta: -404.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 97.45ms. Allocated memory is still 583.0MB. Free memory was 491.4MB in the beginning and 486.2MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3885]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 3885]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 3885]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 3885]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 3885]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 3885]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 60 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 12.0s, OverallIterations: 16, TraceHistogramMax: 1, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 4.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1109 SdHoareTripleChecker+Valid, 2.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1017 mSDsluCounter, 941 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 869 mSDsCounter, 164 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3899 IncrementalHoareTripleChecker+Invalid, 4063 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 164 mSolverCounterUnsat, 72 mSDtfsCounter, 3899 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 182 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=685occurred in iteration=10, InterpolantAutomatonStates: 141, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 6.5s InterpolantComputationTime, 407 NumberOfCodeBlocks, 407 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 391 ConstructedInterpolants, 0 QuantifiedInterpolants, 3521 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-01-27 15:11:11,683 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE